YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1948 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 58.37 | a | 59.52 | 58.12 | m | ----- | z | ----- | z | ----- | z | 58.94 | ||
1949 | 39.94 | 43.27 | 48.87 | 51.08 | 54.48 | a | 56.05 | 57.18 | 58.79 | 58.11 | b | 52.42 | 54.32 | 45.37 | 51.66 | |||||||||||
1950 | 41.26 | 47.25 | 46.84 | 49.40 | 51.55 | 57.00 | b | 59.05 | b | 58.29 | 57.05 | 55.38 | b | 53.03 | 52.55 | 52.39 | ||||||||||
1951 | 46.19 | 47.68 | 44.90 | 50.35 | 54.03 | 56.02 | 57.89 | 59.86 | i | 55.63 | 55.69 | 52.67 | 45.39 | 51.49 | ||||||||||||
1952 | 43.77 | 46.71 | 45.31 | 49.30 | 53.65 | 55.12 | 58.66 | 57.26 | 57.50 | 53.81 | 48.48 | 46.68 | 51.35 | |||||||||||||
1953 | 50.29 | 47.23 | 45.97 | 48.13 | 52.87 | 54.95 | 59.29 | 59.76 | 60.43 | 56.00 | 52.83 | 48.19 | 53.00 | |||||||||||||
1954 | 46.44 | 48.39 | 47.34 | 50.20 | 52.26 | 54.57 | 57.26 | 59.16 | 58.92 | 55.31 | 53.20 | 47.95 | 52.58 | |||||||||||||
1955 | 44.85 | 44.50 | 46.15 | 46.10 | 50.92 | 55.05 | a | 56.53 | a | 55.24 | h | 56.88 | a | 53.18 | i | 49.27 | 48.39 | 49.86 | ||||||||
1956 | 47.26 | 43.43 | 46.37 | 49.07 | b | 53.02 | e | 55.76 | c | 57.90 | a | 59.06 | 57.23 | d | 53.06 | 49.15 | d | 46.34 | f | 51.94 | ||||||
1957 | 42.98 | 48.42 | b | 49.11 | c | 51.24 | c | 55.82 | c | 60.17 | c | 59.73 | a | 59.65 | a | 61.97 | 56.52 | d | 50.20 | c | 48.48 | e | 53.69 | |||
1958 | 50.36 | c | 53.88 | g | 47.50 | 51.77 | o | 55.53 | 60.63 | 60.87 | 62.10 | 61.84 | b | 55.28 | a | 52.37 | d | 52.58 | f | 56.28 | ||||||
1959 | 49.40 | 47.09 | 49.40 | 52.19 | c | 52.98 | a | 57.50 | c | 59.12 | a | 59.27 | a | 57.48 | b | 56.15 | e | 50.64 | e | 48.12 | j | 53.75 | ||||
1960 | 47.47 | 47.66 | 49.02 | a | 50.24 | a | 52.81 | 56.81 | d | 56.60 | a | 59.64 | b | 56.11 | c | 54.46 | g | 50.57 | b | 49.40 | b | 52.39 | ||||
1961 | 50.80 | a | 49.31 | b | 49.38 | a | 49.92 | 52.48 | c | 57.70 | g | 58.67 | a | 59.73 | c | 58.10 | d | 53.31 | e | 48.25 | 46.48 | 52.40 | ||||
1962 | 45.52 | a | 47.18 | 47.23 | a | 50.43 | b | 51.71 | 54.38 | 57.87 | 59.88 | b | 58.82 | 55.76 | d | 51.55 | b | 50.52 | h | 52.76 | ||||||
1963 | 44.57 | d | 54.30 | 48.11 | c | 48.65 | 53.11 | 56.73 | 59.68 | 59.00 | 59.95 | b | 56.44 | 51.55 | a | 49.92 | a | 53.50 | ||||||||
1964 | 46.81 | 49.17 | 46.39 | 49.07 | 51.69 | 56.53 | 59.44 | 58.92 | a | 57.97 | 55.19 | 49.98 | 48.10 | 52.44 | ||||||||||||
1965 | 47.24 | 47.36 | 49.23 | 51.21 | b | 52.00 | 56.30 | 58.30 | a | 61.53 | 56.97 | 56.46 | e | 53.60 | a | 46.43 | c | 53.05 | ||||||||
1966 | 47.32 | 46.66 | 47.98 | 52.28 | 53.79 | 58.88 | a | 60.10 | 60.78 | a | 61.14 | b | 55.55 | b | 52.75 | 49.07 | d | 53.86 | ||||||||
1967 | 47.31 | g | 47.88 | g | 47.41 | i | 47.40 | j | 53.46 | h | 58.68 | e | 60.23 | a | 60.61 | 61.34 | b | 56.80 | h | 53.75 | 46.23 | 56.81 | ||||
1968 | 46.69 | 52.16 | 50.24 | 49.53 | 53.65 | 58.09 | a | 59.76 | 60.73 | 60.58 | f | 54.43 | h | 51.97 | m | 46.45 | l | 53.85 | ||||||||
1969 | 42.52 | d | 44.94 | b | 49.69 | 49.53 | a | 54.97 | a | 59.12 | 60.11 | 60.03 | 59.46 | c | 55.86 | j | 51.83 | g | 50.55 | 53.09 | ||||||
1970 | 51.24 | 51.45 | 51.08 | 49.38 | 55.31 | b | 57.20 | b | 58.29 | 57.98 | 59.02 | 53.26 | 51.11 | k | 46.06 | 53.66 | ||||||||||
1971 | 45.93 | a | 46.36 | 46.13 | 48.00 | 51.61 | 53.78 | 57.94 | 61.63 | 59.63 | 53.65 | d | 49.64 | a | 44.39 | 51.56 | ||||||||||
1972 | 45.07 | b | 47.64 | 49.45 | a | 49.14 | a | 53.31 | 57.73 | 60.44 | 60.16 | 56.84 | e | 56.73 | 50.98 | e | 42.76 | h | 53.41 | |||||||
1973 | 46.33 | a | 49.90 | c | 46.66 | 50.87 | 53.50 | 57.20 | 58.89 | h | 57.89 | d | 60.62 | 54.85 | 49.21 | a | 50.44 | g | 52.70 | |||||||
1974 | 46.29 | 46.55 | i | 48.90 | k | 50.50 | h | 52.17 | k | 55.76 | c | 58.71 | 59.91 | c | 59.12 | e | 55.19 | e | 48.98 | f | 47.67 | g | 55.83 | |||
1975 | 46.44 | e | 47.72 | h | 46.72 | f | 46.26 | i | 52.81 | d | 56.53 | j | 59.09 | h | 58.65 | n | 58.56 | d | 56.68 | a | 50.02 | c | 48.52 | f | 52.90 | |
1976 | 45.97 | m | 43.58 | j | 43.95 | i | 46.57 | h | 51.13 | d | 55.72 | g | 59.91 | d | 60.87 | 60.72 | e | 58.93 | q | ----- | z | ----- | z | 58.16 | ||
1977 | ----- | z | 49.27 | b | 45.48 | c | 49.29 | a | 51.27 | 58.19 | d | 57.94 | 59.15 | 58.12 | 54.94 | 49.95 | 50.34 | 53.08 | ||||||||
1978 | 51.57 | d | 49.93 | f | 52.68 | c | 50.68 | 54.31 | d | 57.64 | b | 59.47 | a | 60.65 | 60.25 | 58.58 | g | 48.60 | e | 45.20 | a | 54.11 | ||||
1979 | 46.06 | 47.73 | 50.43 | a | 51.23 | 55.00 | a | 56.27 | 61.20 | f | 61.26 | d | 63.17 | a | 58.55 | 53.14 | e | 51.38 | f | 54.29 | ||||||
1980 | 47.20 | d | 52.50 | b | 49.19 | 53.08 | 53.90 | b | 55.88 | d | 60.69 | b | 59.35 | e | 58.57 | 55.10 | b | 50.38 | 48.76 | 53.72 | ||||||
1981 | 50.47 | 49.36 | 48.68 | 50.28 | 54.16 | 58.65 | 58.28 | a | 60.35 | 59.08 | 55.18 | 53.03 | 50.44 | 54.00 | ||||||||||||
1982 | 45.76 | 46.84 | 47.21 | 48.40 | 53.00 | 56.72 | 57.65 | a | 59.42 | 60.17 | 56.18 | 49.23 | 46.81 | 52.28 | ||||||||||||
1983 | 49.19 | 49.80 | 49.26 | 48.45 | 52.44 | 56.73 | 58.74 | 59.95 | 59.78 | 55.47 | 50.47 | 47.13 | 53.12 | |||||||||||||
1984 | 48.60 | 47.88 | 50.65 | 49.27 | 52.79 | 55.58 | 59.73 | 61.47 | 59.38 | 53.19 | 49.67 | 46.55 | 52.90 | |||||||||||||
1985 | 48.45 | 47.73 | 47.06 | 51.77 | 53.53 | 58.77 | 60.19 | 59.44 | 58.65 | 55.45 | 46.23 | 47.32 | a | 52.88 | ||||||||||||
1986 | 51.66 | 50.77 | 52.45 | 50.78 | 53.44 | 58.52 | 59.79 | 59.16 | 56.43 | 55.48 | 52.87 | 49.32 | 54.22 | |||||||||||||
1987 | 47.65 | 49.41 | 50.77 | 51.73 | b | 55.43 | c | 57.45 | b | 59.00 | 59.97 | 57.95 | 58.00 | 53.02 | 47.16 | 53.96 | ||||||||||
1988 | 47.89 | 48.78 | 48.60 | 51.12 | 53.34 | 57.24 | a | 61.42 | 59.52 | a | 58.72 | 57.08 | 50.55 | 48.45 | 53.56 | |||||||||||
1989 | 46.08 | 43.12 | 48.10 | 54.10 | 54.18 | 58.12 | 59.15 | 61.00 | 56.33 | 54.35 | 51.33 | 48.47 | 52.86 | |||||||||||||
1990 | 47.58 | 45.68 | 49.18 | 52.43 | 54.19 | 57.67 | 60.84 | 61.40 | 60.38 | 54.52 | 49.03 | 41.57 | a | 52.87 | ||||||||||||
1991 | 46.35 | 52.62 | ----- | z | 50.20 | 51.73 | 55.82 | 60.19 | 59.84 | 60.73 | 57.74 | 50.35 | 46.93 | j | 54.56 | |||||||||||
1992 | 49.88 | j | 53.47 | j | 52.70 | i | 55.05 | h | 56.34 | l | 58.50 | 61.36 | i | 60.85 | k | 59.22 | j | 57.23 | i | 50.75 | l | 46.37 | l | 58.50 | ||
1993 | 45.89 | m | 48.30 | m | 51.86 | i | 51.97 | 56.12 | k | 59.27 | 59.88 | j | 60.25 | i | 56.67 | i | 58.56 | o | 49.47 | j | 48.26 | l | 55.62 | |||
1994 | 49.45 | l | 46.81 | j | 50.95 | 51.28 | j | 55.17 | j | 56.74 | i | 60.50 | l | 61.76 | 60.05 | k | 53.83 | k | 45.23 | 45.79 | l | 52.65 | ||||
1995 | 49.72 | k | 50.00 | l | 50.00 | i | 49.97 | l | 52.98 | 55.70 | 60.79 | 60.65 | 58.68 | 55.21 | j | 51.18 | 50.17 | s | 56.66 | |||||||
1996 | 47.90 | 49.45 | 49.94 | 52.30 | 52.44 | 56.35 | 59.60 | 59.37 | 63.17 | x | 55.24 | 50.58 | j | 49.56 | 53.21 | |||||||||||
1997 | 49.47 | 48.68 | i | 49.84 | i | 51.50 | i | 57.82 | 58.98 | 62.31 | 62.05 | 61.97 | 55.19 | 52.38 | 48.77 | 56.55 | ||||||||||
1998 | 51.31 | 49.50 | 50.89 | 50.55 | 54.56 | 58.12 | 60.45 | 61.58 | 61.08 | 56.00 | 50.43 | 45.82 | 54.19 | |||||||||||||
1999 | 47.65 | 47.11 | 46.95 | 50.33 | 52.44 | 56.13 | 57.24 | 60.29 | 59.85 | 55.03 | 53.38 | 47.35 | 52.81 | |||||||||||||
2000 | 47.65 | 50.50 | 48.92 | 53.45 | b | 54.97 | 59.67 | 59.21 | 60.31 | 60.88 | 54.77 | 48.70 | 48.61 | 53.97 | ||||||||||||
2001 | 48.70 | c | 48.00 | 51.71 | 50.32 | 57.00 | 56.73 | 59.82 | 60.08 | 59.25 | 56.74 | 51.82 | 48.76 | b | 54.08 | |||||||||||
2002 | 47.05 | 49.62 | 48.56 | 52.22 | 54.37 | 57.37 | 61.71 | 61.16 | 60.75 | 55.16 | 54.88 | 49.89 | 54.40 | |||||||||||||
2003 | 51.84 | 48.62 | 50.44 | 49.70 | 53.16 | 57.93 | 55.42 | 57.61 | 61.03 | 59.16 | 49.80 | ----- | z | 54.07 | ||||||||||||
2004 | 49.29 | 49.72 | 52.15 | 54.63 | 57.67 | g | 60.70 | 64.15 | a | 64.06 | 61.25 | 55.98 | 50.50 | 49.42 | 55.62 | |||||||||||
2005 | 48.87 | 50.68 | 52.60 | 52.43 | 58.16 | 59.28 | 63.69 | 62.18 | 59.73 | 56.71 | 50.35 | 49.18 | 55.32 | |||||||||||||
2006 | ----- | z | ----- | z | 47.11 | 50.83 | 54.75 | m | 59.17 | j | 60.88 | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 48.97 | |||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 47.34 | 48.32 | 48.74 | 50.55 | 53.56 | 57.24 | 59.33 | 60.10 | 59.22 | 55.52 | 50.91 | 47.86 | 53.22 | |||||||||||||
S.D. | 2.61 | 2.40 | 2.02 | 1.66 | 1.59 | 1.60 | 1.66 | 1.28 | 1.73 | 1.40 | 2.01 | 2.02 | 0.93 | |||||||||||||
SKEW | -0.47 | -0.03 | 0.11 | 0.12 | 0.81 | 0.15 | 0.46 | 0.27 | -0.06 | 0.18 | -0.34 | -0.56 | 0.08 | |||||||||||||
MAX | 51.84 | 54.30 | 52.68 | 54.63 | 58.16 | 60.70 | 64.15 | 64.06 | 63.17 | 59.16 | 54.88 | 52.55 | 55.32 | |||||||||||||
MIN | 39.94 | 43.12 | 44.90 | 46.10 | 50.92 | 53.78 | 55.42 | 57.26 | 55.63 | 52.42 | 45.23 | 41.57 | 51.35 | |||||||||||||
NO YRS | 50 | 46 | 49 | 49 | 51 | 53 | 52 | 53 | 52 | 46 | 49 | 40 | 28 |